A161823 - cp's OEIS frontend

A161823 Among any n lines on the plane, there exists a pair at an angle not more than a(n) degrees.

n	a(n)
2	90
3	60
4	45
5	36
6	30
7	26
8	23
9	20
10	18
11	17
12	15
13	14
14	13
15	12
16	12
17	11
18	10
19	10
20	9
21	9
22	9
23	8
24	8
25	8
26	7
27	7
28	7
29	7
30	6
31	6
32	6
33	6
34	6
35	6
36	5
37	5
38	5
39	5
40	5
41	5
42	5
43	5
44	5
45	4
46	4
47	4
48	4
49	4
50	4
51	4
52	4
53	4
54	4
55	4
56	4
57	4
58	4
59	4
60	3
61	3
62	3
63	3
64	3
65	3
66	3
67	3
68	3
69	3
70	3
71	3
72	3
73	3
74	3
75	3
76	3
77	3
78	3
79	3
80	3
81	3
82	3
83	3
84	3
85	3
86	3
87	3
88	3
89	3
90	2
91	2
92	2
93	2
94	2
95	2
96	2
97	2

[90, 60, 45, 36, 30, 26, 23, 20, 18, 17, 15, 14, 13, 12, 12, 11, 10, 10, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2]

cp's OEIS Frontend

A161823 Among any n lines on the plane, there exists a pair at an angle not more than a(n) degrees.

Table of values

List of values

n	a(n)
2	90
3	60
4	45
5	36
6	30
7	26
8	23
9	20
10	18
11	17
12	15
13	14
14	13
15	12
16	12
17	11
18	10
19	10
20	9
21	9
22	9
23	8
24	8
25	8
26	7
27	7
28	7
29	7
30	6
31	6
32	6
33	6
34	6
35	6
36	5
37	5
38	5
39	5
40	5
41	5
42	5
43	5
44	5
45	4
46	4
47	4
48	4
49	4
50	4
51	4
52	4
53	4
54	4
55	4
56	4
57	4
58	4
59	4
60	3
61	3
62	3
63	3
64	3
65	3
66	3
67	3
68	3
69	3
70	3
71	3
72	3
73	3
74	3
75	3
76	3
77	3
78	3
79	3
80	3
81	3
82	3
83	3
84	3
85	3
86	3
87	3
88	3
89	3
90	2
91	2
92	2
93	2
94	2
95	2
96	2
97	2

n	a(n)
2	90
3	60
4	45
5	36
6	30
7	26
8	23
9	20
10	18
11	17
12	15
13	14
14	13
15	12
16	12
17	11
18	10
19	10
20	9
21	9
22	9
23	8
24	8
25	8
26	7
27	7
28	7
29	7
30	6
31	6
32	6
33	6
34	6
35	6
36	5
37	5
38	5
39	5
40	5
41	5
42	5
43	5
44	5
45	4
46	4
47	4
48	4
49	4
50	4
51	4
52	4
53	4
54	4
55	4
56	4
57	4
58	4
59	4
60	3
61	3
62	3
63	3
64	3
65	3
66	3
67	3
68	3
69	3
70	3
71	3
72	3
73	3
74	3
75	3
76	3
77	3
78	3
79	3
80	3
81	3
82	3
83	3
84	3
85	3
86	3
87	3
88	3
89	3
90	2
91	2
92	2
93	2
94	2
95	2
96	2
97	2

n	a(n)
2	90
3	60
4	45
5	36
6	30
7	26
8	23
9	20
10	18
11	17
12	15
13	14
14	13
15	12
16	12
17	11
18	10
19	10
20	9
21	9
22	9
23	8
24	8
25	8
26	7
27	7
28	7
29	7
30	6
31	6
32	6
33	6
34	6
35	6
36	5
37	5
38	5
39	5
40	5
41	5
42	5
43	5
44	5
45	4
46	4
47	4
48	4
49	4
50	4
51	4
52	4
53	4
54	4
55	4
56	4
57	4
58	4
59	4
60	3
61	3
62	3
63	3
64	3
65	3
66	3
67	3
68	3
69	3
70	3
71	3
72	3
73	3
74	3
75	3
76	3
77	3
78	3
79	3
80	3
81	3
82	3
83	3
84	3
85	3
86	3
87	3
88	3
89	3
90	2
91	2
92	2
93	2
94	2
95	2
96	2
97	2